Draft-rigging



T.y HVSYMINGTON;

DRAFT RIGGING.

APPUCATIQN ULED lJuneau, 1917.

Patentedy May 17,1921.

' Rigging j and I do hereby declare the fol- Y VUNITED STATES PMI-INTVOFFICE.

THOMAS H. sYMxNGToN, or BALTIMORE MARYLAND, .assnirrot BY MESNEYAssr'oN; y MENTS, 'ro THE fr. H; sYMING'roN COMPANY, or NEW Yom:y N.Y., A CORPORA- TION OF DELAWARE.

To allwlwm t may Gomera:

Be it known thatn I, THOMAS H. SYMNG- TON, a citizenof the UnitedStates, residing' at Baltimore,"in thecity of Baltimore and State ofMaryland, 'have' invented certain new and `useful Improvements inDraftlowing to be a full, clear, and exact description of .theinvention, .suchv as willy enableA yothers skilled inV the art towhichit appertainsto make andfusethe same:

The invention relats to' railway draft rigging, and more particularly'to a cheekplate for use with that type of draft' rigging YI5 ging, 'Iheprincipal object" f. the'` invenltion isrto providemeansto greatlystrengthen commonly called tandem` spring draft' rigand reinforce, andtherehyprolong the life of, aV cheek-plate of the type illustrated anddescribed infUnitedV StatesLetters Patent lheretofore granted tomeon'May 26, 1914,

No. 1,097,740.v The main ,features `of this invention are especiallydirected to the production of improvements in theclreek-plates describedyin my ormer patent, such nn provements being designed to accomplish theobject heretofore pointed ont,k whileretaining in theJ new and improvedrforni ofcheek- Y Yplate'the advantages ofjsimpliity ofkxnanufacture, lowcost of prod1`1ct1f`o1i`,j.andV eiciency of design present in the' saidpatented cheejlplatej y i 1 f There are other',features` of invention,as will be lreadily apparent from" al lmore detailed description ofthepcheekfplatef when 'talrenin connection with?they accompanyingdrawings which hafv'elieen c hse'n for vthe purpose ofillustrating thedevice', and in Iwhich, 4()A Figure l tion,

'of' 'the same taken on B11621421 of Fig-f1,

adjacent the correspondingly' seotion lines, andj j i o j speoinotion ofLetters Patent.

v g is a side elevation of a cheek plate made 1n accordance with myi'nvei'i-V :naam-mesme.

Patented May 17, 1921.

limitation nieu' mit" 3o, 1917'. serial No. 1??,90.

Y6 isA a fragmentary ,top plan view showin the central portion of theimproved forrn o stop casting. A

rIfl'uoughout the specification. and claimsV likeV parts are designatedby like'reference characters.

lsioioo tho improved form ofv otter-plato Y differs Vfrom thatillustrated and described 1n my former patent heretofore mentioned, onlym' the formation of the main stop shoulders and the upper follower'guide Harige, it will only be necessary for al corn`'pletn-n'destanding of'thiS-invention to describe' the cle'ek-fplategenerally except for these particular atures; y s 1f They cheek-platooomprisosa main web vor andrlniddle, and the rearV and middle Stops, Y

are arranged in a plane parallel to, ybut spaced inwardly from, the*rear wall or sill` adjacentvface of the casting, so as to form gilidesfor the ends'v ofthe follower plates.

'A plralityot oountersinks-or depressions 8' and 9v l arey provided' infeach of theA portions 7 of the web; Thev outer, orsill adjaoont foos'fofthose- 'ootntorsinks aro adapted tocontctwith theadjac'entjface of the'car sill, and"V are preferably in the samef'verticalI plane with the*outer` portions of the web 1` af'the" front and rea'r portions 10 and 11of the" cheek-plate. The depressions 8 and 9 and thestticll portions 1'0and 11,are suit- Y ably apertured asfat 12 t'oreceive the securingrivets* which connect fthe cheek-plate to the a"djacentsills;Y Y

Iritermed-iate the main' stop shoulder-sare also ltoatetrtho front' and'r'oanintermodiato or limiting' stops; rfttndy 14, respectively.

Eafoh f of these' stops' is 'crossedV ori intersected A p by'fo'neofthe;idepressi(ins*9.l Fig. 1, the directions in whichfFigs, 3i andV 5.are taken. beingind ic'li'e'd by tli'ef arrows otV tto.V middle,scoprono sloping from tho i oryoornoro: thereof tothe onorj stops,A

The front stop 2 is provided adjacent the upper and lower portionsthereof with forwardly extending lips or flanges17 and 18 which arepreferably made somewhat longer than the correspondingly `extendinglipor flange 19 which is formed on the intermediate portion of the saidstop. These flanges v 1T, 18 and 19, in conjunctionwith the inclinedbracing webs 20, which arefintegrally connected thereto, and the mainweb ofthe cheek-plate, form longitudinally extending 'pockets 21 whichopen on the inner or yoke adjacent face of the cheek-plate. `The outerfaces of these lips or flanges vform `an eX- tended bearing againstwhich the adjacent portion of the yoke may rub, and also .Serve togreatlystrengthen and reinforce the vertically extending flange whichforms the front stop 2. j l greatly strengthened `by providing`thejconnecting webs 22 thereof with vertically extending lips orflanges 23 whiclnAin-conjunction with the said webs 22, form a series ofT shaped flanges, the headA of each `T forming a portion of the yokeadjacent face of the said stop. I also preferably provide a downwardlyextending lip 24 on the inner edge` of the flange forming the upper endof the said stop, the verticalface ofsaid lip `being preferably inthesame planewith the outer faces of the T flanges. These lips orflanges 23, 23'and 24 lgive to the inner face vof the middle stop alarge Wearing area to counteract the rubbing action ofthe adj acentportion of the draft yoke, and also greatly strengthen the verticalflanges 5 and f5 which form the followeriadjacent(faces ofthe middlestop. The pockets 23a formed by the flanges v5 and 6, the webs 22 andthe main web 1 `of the casting open, aswillbe observed from thedrawings, on vthe inner or inner edge of the rear stop `3is likewisepro- `vided with alip or flange 25, this flangeextending rearwardly, andis` integrally connected-to the bracing webs 26 `and is spaced from themain web of the-cheek-plate. `The `longitudinally extending pockets [27i thus formed by the stop member 3, the flange 25, the bracing webs 26and the `main web 1, also' lopen on the yoke adjacent `faceof thecheek-plate. A y,

Owing to the constantly increasinguse of cast steel yokes in draftrigging, it hasbecome .of great importance to inrease the The middlestop 4 is also area of the malleable iron cheek-plate at all possiblepoints of contact of the same with the yoke. To increase the wearingarea of the .cheek-plate and at the same time to retain the highlydesirable construction heretofore patented to me has given rise to greatdifficulty and has been `successfully accomplished 'in the device hereindescribed. It will be readily apparent from the foregoing descriptionthat the improved form o cheek-plate presents at all places of Contactof thesame with the yoke a large s urface area, and that this additionalarea is produced by flanges which add great strength to the casting andwhich do not in the least interfere with the simple method of castingthe cheek-plate or make any change 1n the vform of the casting whichwould prevent its use in the replacement of the type heretofore patentedto me.

. 1 Having now described my invention, what I claim and desire to`secure by Letters Patentis:` Y jj' 7,

y1. A cheek-plate for tandem spring draft rigging comprising a main web,a plurality of end sto lmembers connected thereto, said stop memY ers`each involving a flange extending inwardly fromv said, web, a middlestop member connected to said web and involving a lpair of` spacedinwardly extendinganges connected b spaced webs", 'and meansiforreinforcing said end sto members said means comprising longitudinallyand vertically extending flanges connected to the j inner or yokeadjacent faces .of said end stop members, and means for reinforcing said`middle stopmember comprising vertical longitudinally extendingf flangesconnected to V,said `webs,the vertical faces of :said flanges being`located in the same plane as the inner Vor yoke adjacent edges of saidstop flanges.

i. 2,.- r-1cl1eek-plate fortandem spring draft rigging comprisinga mainweb, a plurality of stop members extending inwardly Atherei 'fromand,vrespectively, forming the three main follower stops, and aplurality of longitudinally extending flanges spaced inwardly fromsaidmain web and respectively .tandemv draft rigging'side casting havingfront, rear, and center main stops,

the casting being formed with a web ofsub- Ain forming `saidv stops,portionsof the web at the center stop of the casting, on theinner facethereof, being omitted whereby to permit coring and ,at the same timeleave a l large wearing surface. j

ilo

reinforcing said stop members, the spaces r between said lflanges andthe main web opening upon the innerfaceof the cheek-plate. yoke:adjacent face of the cheek-plate. The 3.,

4. A sfide casting for tandem draft rigging Y `having a hollowcenterstop provided with horizontally eXtendin ribs thereacross, said rlbsbang proceed aves their einer edges' With wide, vertically extendingfianges forming Wide Wearing surfaces.

5. A casting for draft riggings having' a Web of substantially uniformthickness and provided with stop shoulders, one of said stop shouldershaving horizontal strengthening ribs on the interior thereof, the inneredges of said ribs being provided with relaively Wide flanges extendingvertically, said flanges increasing the strength of said stop 10 andalso providing a Wide bearing surface for parts of the gear to Workagainst.

In testimon whereof I aiix In signature.

T OMAS H. SYMI GTON.

